VARIABLE GEAR RATIO STEERING SYSTEM, Diagnostic DTC:C15C1/74, C15C2/74

DTC Code DTC Name
C15C1/74 Steering Angle Sensor
C15C2/74 Steering Angle Sensor B+

DESCRIPTION

The VGRS ECU (front steering control ECU) detects a steering sensor malfunction by receiving an error signal from the steering sensor via CAN communication. If the VGRS ECU (front steering control ECU) detects this error signal, it turns the master warning light on, stores these DTCs and stops VGRS operation.

DTC Code DTC Detection Condition Trouble Area
C15C1/74

Both conditions are met for approximately 3 seconds or more:


  • The power switch is on (IG).

  • Information regarding a steering sensor internal malfunction is received via CAN communication.

 Steering sensor
C15C2/74

Both conditions are met for approximately 2 seconds or more:


  • The power switch is on (IG).

  • Information regarding a steering sensor internal malfunction (+B open circuit) is received via CAN communication.

 Steering sensor

INSPECTION PROCEDURE

Note

Since DTC C1B09/19 is stored in the DRS ECU (rear steering control ECU), after performing repairs on the VGRS system, clear the DTCs for the dynamic rear steering system. (When DTC C15C2/74 is stored, DTC C1B09/19 is not stored in the DRS ECU [rear steering control ECU]).

PROCEDURE


  1. CHECK DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Check for DTCs in the electronically controlled brake system Click here.


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    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here